Mostrando títulos en Ciencia Ficción

John’s class is being examined by the mysterious Scholars of Kerallin. If that isn't stressful enough, a former student with a grudge arrives unexpectedly and puts them all in danger.

The Kingdom Keepers' senior year in high school is almost over. For more than three years, things have been quiet. Their battles are long behind them, they agree, the threat to the Disney realm silenced albeit at great cost. But inside the catacombs of the Aztec temple where Finn Whitman faced down his nemesis, the monstrous Chernabog, a new threat brews.

It was never easy for Sammy Hayes-Rodriguez to fit in, so he's dreading the day when his genius mom insists he bring her newest invention to school: a walking, talking robot he calls E—for "Error". Sammy's no stranger to robots—his house is full of a colorful cast of them. But this one not only thinks it's Sammy's brother... it's actually even nerdier than Sammy. Will E be Sammy's one-way ticket to Loserville? Or will he prove to the world that it's cool to be square?

When one of the time-traveling crew is running for student-body president at Manchester Middle School, Rush Revere takes them back in history to witness the election and leadership of our first three presidents.

Jack and Annie are whisked back to the Civil War, where they meet Clara Barton and save the life of their very own great-great-great-grand-father.

Greg Rich should feel invincible. After all, he’s traveled through time, become one of the legendary Musketeers, and - most recently - prevented the Spanish army from attacking Paris. Instead, he and his friends are languishing in prison, having fallen into a trap set by Milady and the prince of Condé. But Greg didn’t come to the 17th century to sit in a jail cell and await execution. He, Aramis, Athos, and Porthos need to get to King Louis, who is in immediate danger of being overthrown by the scheming prince.

Conor and Grace are twins, recently orphaned after their widowed father's death. They decide to set sail for new pastures in their father's last possession, his sailboat. But a vicious storm capsizes their boat, and the twins are separated. Two mysterious ships sail to their rescue, each picking up one twin before disappearing into the mist. Conor wakes to find himself on a pirate ship; Grace finds herself locked in a darkened room, as the vampirates wait for night to fall and their feasting to begin.

All thirteen-year-old Houston Stewart has ever wanted is to become an astronaut. His dreams feel like they're finally coming true when he's accepted to the highly-competitive Junior Astronaut Recruitment Program—if only he could bring his little brother, Robbie, with him. Ever since their dad left, Houston and Robbie have been inseparable. It's hard to tell where Houston's love of space ends and where Robbie's begins. But Robbie's cerebral palsy and epilepsy mean he needs medical attention at home, so Houston is forced to take this giant leap for the two of them all on his own.

There's nowhere to hide on the world's first moon base. After all, it's only the size of a soccer field. So when Nina Stack, the commander of Moon Base Alpha, mysteriously vanishes, the Moonies are at a total loss. Though he may be just 12 years old, Dashiell Gibson is the best detective they've got. But this confusing mystery pushes Dash to his limits. Especially since Dash accidentally made contact with an alien and has to keep it a secret.

The robots are here and they're not happy, at all. After accidentally releasing the robot villains from Super Bot World 3 into the real world, Jesse Rigsby's got to figure out a way to make everything right before anyone gets hurt. He'd usually rely on his friend Eric to help him with this sort of thing, but he's gone missing. To find Eric, Jesse will have to survive rickety mine carts, sewer piranhas, mysterious men in suits, and a 100-foot-tall robot named Goliatron. This is Jesse's most dangerous adventure yet because this time the video game is real.

Dave and his friends try to save the Badlands from the evil Mad Mulligan.

After Tip and J.Lo banished the Gorg from Earth in a scheme involving the cloning of many, many cats, the pair is notorious - but not for their heroics. Instead, human Dan Landry has taken credit for conquering the Gorg, and the Boov blame J.Lo for ruining their colonization of the planet. Determined to clear his name, J.Lo and Tip pack into Slushious, a Chevy that J.Lo has engineered into a fairly operational spaceship, and head to New Boovworld, the aliens' new home on one of Saturn's moons.

Klawde is not your average cat. He's an emperor from another planet, exiled to Earth. He's cruel. He's cunning. He's brilliant...and he's about to become Raj Banerjee's best friend. Whether he likes it or not.

Rachel is still reeling from the news that the Earth is secretly under attack by parasitic aliens known as the Yeerks. And that she and her friends - five kids who, purely by chance, stumbled onto a downed spacecraft and were given the power to morph into any animal they touch - are the planet's only defense. But Rachel's always been something of a daredevil. So when it's suggested that they infiltrate the home of their assistant principal, Mr. Chapman, who also happens to be a human host of the Yeerks, she volunteers. But what she finds inside may be more than even she can handle.

Best-selling and award-winning author Margaret Peterson Haddix delivered an instant classic when she launched her Missing series. Two books ago, a plane landed with no pilot and no adults—and a passenger load of 36 infants. Years later, teens were shocked when clues began to turn up about just what it meant to be one of “the missing.” Now young heroes Jonah and Katherine must help a girl return to the past amid a host of unexpected challenges.

Michael Prasad knows he shouldn’t go out on the Mars surface alone. It’s dangerous. His parents have forbidden it. And the anxiety he feels almost every time he puts on a spacesuit makes it nearly impossible for him to leave the safety of the colony. But when his best friend, Lilith, suggests they sneak out one night, he can’t resist the chance to prove everyone - including himself - wrong.

Anakin Skywalker is a model Jedi student... but there's a restlessness that lurks underneath. Can his Master, Obi-Wan Kenobi, rein him in?

Set between Episode I and Episode II, Jedi Quest traces the emergence and education of Anakin Skywalker as a young Jedi devoted to the Force - and tempted by its dark side.

Forced to hide her new-found magic or risk imprisonment—or worse—Myra enrolls in an interplanetary academy exchange program to dig up more about the government's many conspiracies. Instead, she uproots even darker secrets that could drown everything she's grown to trust.

Collection of short stories featuring Hard Luck Hank and his early days on Belvaille. Print Length: 63 pages Includes: -Why Hank came to Belvaille -Hank's first job -Where Hank got his plasma pistol -Hank's first murder -Introduction of glocken -Where the Gentleman's Club and Athletic Club came from -Hank's first love -How and why Belvaille changed and became what it is today NOTE: while the stories are stand-alone, it contains many references to characters and events in Hard Luck Hank novels.

Ricky Ricotta loves his mighty robot. They do everything together, but it's sometimes hard for a small mouse to have such a big buddy! If only the mighty robot could find someone his own size to play with, Ricky might finally have some fun by himself. Little does Ricky know, his wish is about to come true. Evil Uncle Unicorn has a top-secret plan to trap the mighty robot so that he can take over Earth, and he's got a giant surprise in store. Once again, it's up to Ricky to save the planet - and his best friend!